I play tennis for a living even though I hate tennis, hate it with a dark and secret passion and always have.

I think one of the greatest joys I have now in my career and in my profession is to be playing at an age where I can appreciate it more than I used to... It's a whole different lens you look through the older you get.

I can live with losing, I can't live without taking my chance.

Sex doesn't interfere with your tennis; it's staying out all night trying to find it that affects your tennis.

I question myself every day. That's what I still find motivating about this. I don't have the answers, I don't pretend that I do just because I won the match. Just keep fighting and maybe something good happens.

When you deal with somebody in the heat of battle, you see the best or the worst of them. So when you get through all that there is a great deal of respect.

If you're ranked number one in the world it's because you've earned it, and I think the only way to really get there is to have that ability and to have it nurtured in a very competitive environment at an early age.